Javascript – Number function
The Number JavaScript object is a wrapper object allowing you to work with numerical values. A Number object is created using the Number() constructor. It read more
Javascript – parseInt
The parseInt() function parses a string argument and returns an integer of the specified radix (default 10). In case the string starts with a valid read more
Javascript – check if string is number
The isNaN() function determines whether a value is NaN (Not-A-Number) or not. Note that parseInt approach may not work with strings having valid number prefix. read more
jQuery ui slider and input text box – two way binding
jQuery ui can be used to create a slider with updated value getting displayed in an input text box and any update in text box read more
jQuery ui slider and input text box – one way binding
jQuery ui can be used to create a slider with updated value also getting displayed. Syntax: Example – slider and input text box – one read more
CSS box-shadow
CSS (CSS3) box-shadow property attaches one or more drop-shadows to the box. CSS property box-shadow Few points to note: blur radius spread distance and color read more
CSS text-shadow
CSS3 text-shadow accepts a comma-separated list of shadow effects to be applied to the text of the element. CSS property text-shadow blur-radius and color are read more
CSS3 Gradient examples
A gradient is an image that smoothly fades from one color to another. These are commonly used for subtle shading in background images, buttons, and read more
Chrome – disable notifications from a site accepted earlier
In case you have accepted to get notifications from a site, it can be disabled later. These are the steps Click on Chrome settings from read more
Linux Systemd/Systemctl quick start guide
Systemd is an init system used by new Linux distributions like Ubuntu 15 and Centos 7. It intends to replace Sysv init (Ubuntu, Centos, etc) read more
Centos/RHEL – find package for a file
Centos/RHEL Linux yum command line tool can be used to find which package a file belongs to. Fine packages based filename To find package which read more
AngularJS ng-list example
AngularJS ng-list directive can be used in text input and it converts between a delimited string and an array of strings. The default delimiter is read more
Centos – save and restore iptables
Linux command iptables can be used to make changes to Linux iptables. By default these changes are not reboot-safe and will get lost on reboot. read more
Change default language on Centos/RHEL
To change default language or locale on Centos or RHEL Linux, follow these steps To see the current language: $ cat vi /etc/sysconfig/i18n LANG=”de_DE.UTF-8″ SYSFONT=”latarcyrheb-sun16″ read more
Vagarant quick start guide on Mac
Vagrant is an excellent tool to create and configure lightweight, reproducible, and portable development environments. Here is a quick start guide to use vagrant on read more
Mac – show volume icon on menu bar
To show volume icon on Mac top menu bar follow these steps: Open system preferences by using spoltlight search. Click on sound icon Select sound read more
Linux iptables and ip6tables examples
Linux iptables is a user-space application program that allows a system administrator to configure the tables provided by the Linux kernel firewall (implemented as different read more
AngularJS ng-if vs ng-hide/ng-show
Angular ng-if directive removes or recreates a portion of the DOM tree based on an expression (true or false). On the other hand ng-show (or read more
AngularJS ng-href example
AngularJS directive ng-href can be used to use a template to create href. Directly using it in href can make the link broken before Angular read more